Guiding and fixing method for eye detection device

Abstract

The present invention discloses a guiding and fixing method for an eye detection device. The eye detection device includes at least a first preset light source and a second preset light source. The guiding and fixing method comprises the following steps: (a) disposing at least one dummy light source between the first preset light source and the second preset light source; (b) when the distance between the eye detection device and the eye changes, emitting light from the dummy light source to guide the eye's gaze; and (c) when the distance between the eye detection device and the eye stops changing, switching to emitting light from the first preset light source and / or the second preset light source to guide the eye's gaze.

Description

Technical Field

[0001] The present invention relates to an eye detection device, and in particular to a guiding and fixing method applied to the eye detection device. Background Art

[0002] Generally speaking, the preset light sources (e.g., light-emitting diodes) in conventional eye detection devices are typically positioned in fixed positions (e.g., on the left and right sides). Under normal circumstances, the preset light sources of the eye detection device are within the subject's visual range, providing light to guide the eyes during the test. During the eye detection device's testing of the subject's eyes, the eye detection device may need to be moved to adjust the distance between the device and the subject's eyes.

[0003] However, when the eye detection device moves toward the subject's eyes, the distance between the eye detection device and the subject's eyes shortens, resulting in the two preset light sources of the eye detection device being likely to fall outside the visual range of the subject's eyes, requiring the subject's eyes to rotate a considerable angle at a time, which urgently needs to be improved. Summary of the Invention

[0004] In view of this, the present invention proposes a guiding and fixing method for an eye detection device to effectively solve the above-mentioned problems encountered in the prior art.

[0005] According to one embodiment of the present invention, a guiding and fixing method is provided for use with an eye detection device. In this embodiment, the guiding and fixing method is applied while the eye detection device is performing an eye detection. The eye detection device includes at least a first preset light source and a second preset light source. The guiding and fixing method includes the following steps: (a) disposing at least one dummy light source between the first preset light source and the second preset light source; (b) when the distance between the eye detection device and the eye changes, emitting light from the dummy light source to guide the eye's gaze; and (c) when the distance between the eye detection device and the eye stops changing, switching to emitting light from the first preset light source and / or the second preset light source to guide the eye's gaze.

[0006] In one embodiment, the change in the distance from the eye detection device to the eye in step (b) means that the distance from the eye detection device to the eye is shortened.

[0007] In one embodiment, the eye detection device is moved toward the eye so that the distance from the eye detection device to the eye is shortened.

[0008] In one embodiment, if the angle between the line of sight of the eye to the first preset light source and the line of sight of the eye to the second preset light source is the original rotation angle, then the first rotation angle of the eye when changing from looking at the first preset light source to looking at the dummy light source and the second rotation angle of the eye when changing from looking at the dummy light source to looking at the second preset light source are both smaller than the original rotation angle, so that the eye does not need to rotate too large an angle at one time.

[0009] In one embodiment, when the distance between the eye detection device and the eye has not changed, the first preset light source is located within the visual range of the eye.

[0010] In one embodiment, while the distance between the eye detection device and the eye changes, the dummy light source is located within the visual range of the eye.

[0011] In one embodiment, when the distance from the eye detection device to the eye stops changing, the first preset light source and / or the second preset light source is located within the visual range of the eye.

[0012] In one embodiment, the first preset light source, the second preset light source, and the dummy light source are arranged in a straight line.

[0013] In one embodiment, the first preset light source, the second preset light source, and the dummy light source are arranged obliquely to each other.

[0014] In one embodiment, the dummy light source is a light-emitting diode (LED).

[0015] Compared with the prior art, when the distance between the eye detection device and the subject's eyes changes, the guiding and fixing method of the present invention will switch to using a virtual light source arranged between the first preset light source and the second preset light source to provide light to guide the subject's gaze, which can effectively prevent the subject's eyes from rotating too large an angle at one time, thereby improving the shortcomings of the prior art.

[0016] The advantages and spirit of the present invention may be further understood through the following detailed description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 4 is a flow chart of a guiding and fixing method applied to an eye detection device according to an embodiment of the present invention.

[0018] Figure 2A is a schematic diagram showing that the first preset light source is within the visual range of the eye when the distance between the eye detection device and the eye has not changed.

[0019] Figure 2B FIG. 4 is a schematic diagram of a virtual light source being within the visual range of the eye while the distance between the eye detection device and the eye changes. FIG.

[0020] Figure 2C is a schematic diagram showing that the second preset light source is within the visual range of the eye when the distance from the eye detection device to the eye stops changing.

[0021] Figure 3A and Figure 3B Schematic diagram of determining whether an appropriate working distance has been reached between an eye detection device and a subject's eyes based on two light spots.

[0022] Figure 4A It is a schematic diagram showing that the first preset light source, the second preset light source and the dummy light source are arranged in a straight line.

[0023] Figure 4B This is a schematic diagram showing that the first preset light source, the second preset light source, and the dummy light source are arranged obliquely to each other.

[0024] Description of main component symbols:

[0025] S10~S14...steps

[0026] ED...Eye Detection Device

[0027] EYE...eyes

[0028] LS1...First preset light source

[0029] LS2...Second preset light source

[0030] DM...Dummy Light Source

[0031] d...distance

[0032] R...Visual range

[0033] d'...distance

[0034] M...Light Point

[0035] N...light spots DETAILED DESCRIPTION

[0036] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Components / members that use the same or similar reference numerals in the drawings and embodiments are intended to represent the same or similar parts.

[0037] According to one embodiment of the present invention, a guiding and fixing method is provided for use with an eye detection device. In this embodiment, the guiding and fixing method is applied while the eye detection device is detecting a subject's eyes, but the present invention is not limited thereto. The eye detection device can provide one or more eye detection functions and includes at least a first preset light source and a second preset light source.

[0038] Figure 1 FIG. 1 is a flow chart of a guiding and fixing method applied to an eye detection device according to this embodiment. Figure 1 As shown, the guide fixing method of this embodiment may include the following steps:

[0039] Step S10: Disposing at least one dummy light source between the first preset light source and the second preset light source;

[0040] Step S12: When the distance between the eye detection device and the eye changes, the dummy light source emits light to guide the eye's gaze; and

[0041] Step S14: When the distance from the eye detection device to the eye stops changing, the first preset light source and / or the second preset light source are switched to emit light to guide the eye's gaze.

[0042] In practical applications, the first preset light source, the second preset light source, and the dummy light source may be light-emitting diodes (LEDs) or other types of light sources, without particular limitation. The change in the distance between the eye detection device and the subject's eyes in step S12 may, for example, involve moving the eye detection device toward the subject's eyes to shorten the distance between the eye detection device and the subject's eyes, but is not limited thereto.

[0043] It should be noted that since the virtual light source is arranged between the first preset light source and the second preset light source, assuming that the angle between the line of sight of the subject's eyes to the first preset light source and the line of sight of the subject's eyes to the second preset light source is the original rotation angle, the first rotation angle of the subject's eyes when changing from looking at the first preset light source to looking at the virtual light source and the second rotation angle of the subject's eyes when changing from looking at the virtual light source to looking at the second preset light source will both be smaller than the original rotation angle, so that the subject's eyes do not need to rotate too large an angle.

[0044] In one embodiment, the eye detection device ED may be equipped with a distance detector to detect whether the distance between the eye detection device ED and the subject's eyes has changed, but the present invention is not limited thereto. When the distance detector detects a change in the distance between the eye detection device ED and the subject's eyes, the eye detection device ED switches to emitting light from a dummy light source positioned between the first and second preset light sources to guide the subject's eye gaze. Conversely, the eye detection device ED switches back to emitting light from the first and / or second preset light sources to guide the subject's eye gaze.

[0045] In one embodiment, when the distance between the eye detection device and the subject's eyes has not changed, the first preset light source is positioned within the visual range of the subject's eyes. While the distance between the eye detection device and the subject's eyes is changing, the dummy light source is positioned within the visual range of the subject's eyes. When the distance between the eye detection device and the subject's eyes stops changing, the first preset light source and / or the second preset light source are positioned within the visual range of the subject's eyes.

[0046] For example, if Figure 2A As shown, when the distance d between the eye detection device ED and the subject's eye EYE has not changed, the first preset light source LS1 of the eye detection device ED is within the visual range R of the subject's eye EYE. At this time, the eye detection device ED is illuminated by the first preset light source LS1 to provide a light source to guide the gaze of the subject's eye EYE.

[0047] like Figure 2B As shown, when the eye detection device ED moves toward the subject's eye, while the distance between the eye detection device ED and the subject's eye changes, the eye detection device ED switches to emitting light from a dummy light source DM positioned between the first and second preset light sources LS1 and LS2, thereby guiding the subject's eye to rotate and fixate. In this case, the subject's eye does not need to rotate significantly. It should be noted that while the distance between the eye detection device ED and the subject's eye changes, the first and second preset light sources LS1 and LS2 may be outside the visual range R of the subject's eye, but this is not a limitation.

[0048] like Figure 2C As shown, when the eye detection device ED stops moving toward the eye EYE, that is, when the distance between the eye detection device ED and the eye EYE becomes d' and stops changing, the eye detection device ED switches to emitting light from the second preset light source LS2 to guide the subject's eye EYE to rotate and fixate. In this case, the subject's eye EYE does not need to rotate a large angle at a time.

[0049] like Figure 3A and Figure 3B As shown, Figure 3A The light spots M and N in the figure are used for detecting the working distance. When the light spots M and N are located at left-right symmetrical positions within the visual range R of the eye and are focused, it means that the relative distance between the eye detection device ED and the subject's eye EYE in the three axes of X, Y, and Z has reached the appropriate working distance.

[0050] When the subject's eye moves, the light spots M and N will also move accordingly. If the subject's eye moves too much at once, as in the prior art, the light spots M and / or N are likely to move out of the visual range R of the eye. Figure 3B Therefore, Figures 2A to 2C As shown, the present invention uses the virtual light source DM to prevent the subject's eye EYE from rotating too much at a time, thereby effectively avoiding the situation in the prior art where the light spot M and / or the light spot N goes outside the visual range R of the eye EYE.

[0051] In practical applications, the first preset light source LS1, the second preset light source LS2 and the dummy light source DM of the eye detection device ED can be arranged in different ways according to actual needs. Figure 4A As shown, the first preset light source LS1, the second preset light source LS2 and the dummy light source DM can be arranged in a straight line with each other; Figure 4B As shown, the first preset light source LS1 , the second preset light source LS2 and the dummy light source DM may be arranged obliquely to each other.

[0052] Compared with the prior art, when the distance between the eye detection device and the subject's eyes changes, the guiding and fixing method of the present invention will switch to using a virtual light source arranged between the first preset light source and the second preset light source to provide light to guide the subject's gaze, which can effectively prevent the subject's eyes from rotating too large an angle at one time, thereby improving the shortcomings of the prior art.

Claims

1. A guiding and fixing method for an eye detection device, characterized in that: The eye detection device includes at least a first preset light source and a second preset light source. The guiding and fixing method applied to the eye detection device includes the following steps: (a) disposing at least one dummy light source between the first preset light source and the second preset light source; (b) when the distance between the eye detection device and the eye changes, the dummy light source emits light to guide the gaze of the eye; as well as (c) When the distance from the eye detection device to the eye stops changing, the first preset light source and / or the second preset light source are switched to emit light to guide the gaze of the eye.

2. The guiding and fixing method for an eye detection device according to claim 1, wherein: The change in the distance from the eye detection device to the eye in step (b) means that the distance from the eye detection device to the eye is shortened.

3. The guiding and fixing method for an eye detection device according to claim 2, wherein: The eye detection device moves toward the eye so that the distance from the eye detection device to the eye is shortened.

4. The guiding and fixing method for an eye detection device according to claim 1, wherein: If the angle between the line of sight of the eye to the first preset light source and the line of sight of the eye to the second preset light source is an original rotation angle, then the first rotation angle of the eye when changing from looking at the first preset light source to looking at the virtual light source and the second rotation angle of the eye when changing from looking at the virtual light source to looking at the second preset light source are both smaller than the original rotation angle, so that the eye does not need to rotate too large an angle at one time.

5. The guiding and fixing method for an eye detection device according to claim 1, wherein: When the distance between the eye detection device and the eye has not changed, the first preset light source is located within the visual range of the eye.

6. The guiding and fixing method for an eye detection device according to claim 1, wherein: During a period in which the distance from the eye detection device to the eye changes, the dummy light source is located within the visual range of the eye.

7. The guiding and fixing method for an eye detection device according to claim 1, wherein: When the distance from the eye detection device to the eye stops changing, the first preset light source and / or the second preset light source is located within the visual range of the eye.

8. The guiding and fixing method for an eye detection device according to claim 1, wherein: The first preset light source, the second preset light source and the dummy light source are arranged in a straight line.

9. The guiding and fixing method for an eye detection device according to claim 1, wherein: The first preset light source, the second preset light source and the dummy light source are arranged obliquely to each other.

10. The guiding and fixing method for an eye detection device according to claim 1, wherein: The dummy light source is a light emitting diode.

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